you add on to what we have, and the last word of what is already there you take the last letter and make a new word from it:
we started with black pearL...black pearl Lays....black pearl lays sand ..get it??

NO NO NO !!!!!!!! YOU GOT IT WRONG LMAO!!!!!!!!
You take the last letter of the word and make another potc word from it lik black pearL....LooT......then the next wotd is potc related beginning with T. soooooo lets say
TORTUGA..... the next word on its own should begin with A.